Logitech MK550 Black USB RF Wireless Ergonomic Wave Combo Logitech MK550 Black USB RF Wireless Ergonomic Wave Combo

Pros: Mouse is decent

Cons: Keyboard died after three months. Change batteries constantly but keep getting weird lag issues. I don't think its the receiver because mouse has good response time.

Pros: Comfortable, lots of nice features

Cons: After a while the keys start sticking, the mouse hangs, quits scrolling and has to be reset.

Other Thoughts: This is the second unit I've had and they have both exhibited the same behavior after some time, usually within the first year.

Pros: Keyboard and mouse, one receiver.
Keyboard is nice, or would be if it weren't for the con.
Mouse is good, except for the con.

Cons: Keyboard would be excellent, but the spacebar doesn't register unless you press it dead center, firmly. So if you type properly and use your thumbs to press the spacebar, 25-90% of your spacebar presses will not go through. It will also sometimes insert 2 spaces for no obvious reason.

The mouse would be great, it's a little light, but the biggest problem is that the plastic pieces do not line up perfectly between the top and the left side, which wouldn't bother me as much if it didn't leave a jagged edge that scratches my hand from time to time.

Other Thoughts: I've used Logitech products for years, the Logitech keyboard and mouse I replaced with this combo worked great for nearly 10 years of fairly heavy use. I was looking forward to getting the upgrade. Now after using it for a little while I'm fairly sure that I will be replacing them both as soon as possible. I did not purchase this from Newegg. I found a good deal on it locally for less than $50. If you can find it that cheap, I still recommend avoiding it.

Pros: Most importantly, everything works great! Took literally 30 seconds to get everything out of the box and working. Mouse works great and is comfortable - no lag issues. Keyboard design is nice and ergonomic.

Cons: I am a very fast typist and I have noticed that when I get on a roll, sometimes there is a slight lag. Rarely noticable. If you type under 100 WPM, don't worry about it.

Other Thoughts: Buy!

Pros: Very nice keyboard, with the drivers installed you get some cool features like smooth scrolling and more. Its wireless so you can move around, and looks nice on the desk.

Cons: Had it for over a year until noticed some issues. The receiver in the keyboard seems to be faulty, my keyboard would freeze for few seconds, and I have to give it a move or shake to make it work, and the batteries were fine. And one last thing, the small holes in the pad on the keyboard and the sides of the mouse as well seem likely to collect anything in, which is not cool.

Other Thoughts: Probably not going to get a wireless mice or keyboard anymore, but those are just my thoughts.

Pros: Keyboard has great feel to it. It's very comfortable to use. It also has quite a few function keys that come in handy. Key presses are fairly quiet.

Cons: I don't do a ton of gaming anymore, which is why I decided to go with a wireless keyboard. The little bit of gaming that I have done has been terrible with this keyboard and mouse. They often just stop working for 1-3 seconds. I'll be purchasing another wired keyboard, and I'll probably just end up using this one with my media center. I do not recommend this for any type of heavy usage.

Pros: Many function keys that do not confuse you as they are easily controlled through this keyboard versus control from a mouse.

Cons: A great keyboard but you have to depart with a little money for this great keyboard, price is little much.

Other Thoughts: Never had a bad experience with Logitech products.

Pros: The look-n-feel is exceptionally high quality. Really beautiful gear. The ergos are just right.

Cons: Massive keyboard dropouts. Occasional mouse dropouts. My particular keyboard/mouse is junk. I'll attempt return if possible.

Other Thoughts: We are having significant quality problems in this country. Durable goods aren't so durable anymore. As an example, I've had 4 air conditioning compressors in two years.

I did not expect Logitech to join this trend. I'm massively disappointed.

Pros: -wireless
- mouse has a great feel/fit to it
-logitech quality
-price is good for the combo

Have been using this mouse and keyboard for the passed tow years with no problems at all. The mouse has a perfect feel to it and is comfortable to use. I have almost no complaints and would recommend to anyone who doesn't do intense gaming.

Cons: -not much for gaming
-response time when typing fast can get choppy

Pros: Perfect key response. The ergonomic curve is great as well.
Comfy built-in hand rest.
Plenty of extra buttons...

Cons: ...which don't work in Linux. Most of them can be made to do something with a little effort, but 5 of them (top-leftmost, bottom-leftmost, Fn-F{4,5,6}) don't even register a keycode or scancode on my machine, meaning the kernel doesn't know how to handle them.